function findnode(node, range)

hold on

dotColor = 'k.';

if nargin == 1
    range = (1:size(node,1))';
end

plot(node(range,1), node(range,2), dotColor, 'MarkerSize', 15);
text(node(range,1)+0.015, node(range,2)+0.015, int2str(range), 'FontSize', 12, 'FontWeight', 'bold');

hold off

end